.top{
    font-weight: bold;
    height: 50rem;
    line-height: 50rem;
    padding:0 30rem;
    border-bottom: 1rem solid black;
}
.tab{
    margin-left: 20rem;
    li{
        height: 40rem;
        line-height: 40rem;
    }
}
.bot{
    height: calc(100% - 50rem);
    background-color:rgb(247, 247, 247);
    overflow-y: auto;
}